Operation - Work application
6 - 60
830 / 07.2012
Original operating instructions
Swing bearing holding
brake
The swing bearing holding brake serves exclusively as a parking and
holding brake when the upper structure is at rest.
WARNING
The swing bearing holding brake is not a service brake for decelerating
the upper structure. If the swing bearing holding brake is used to
decelerate the upper structure, serious damage will be caused to the
brake or the swing gear. This damage can be of the following nature:
Slackened braking effect due to clutch plate damage
Irreparable damage to the brake or other components
Irreparable damage to the swing bearing
This damage is excluded from the terms of the warranty issued by
SENNEBOGEN Maschinenfabrik GmbH.
The operator of the machine alone is liable for such damage as well as
any consequential damage — for instance, damage resulting from
reduced braking action!
Switch position 1 = Automatic operation
Preselection of the swing bearing brake, which engages at the start or
at the end of an action:
– When the upper structure is stationary, the swing bearing brake
engages automatically.
– When the upper structure swings, the swing bearing brake
disengages automatically.
– The following symbol appears in SENCON:
If the speed sensor on the swing motor does not issue a signal for
4 seconds, the swing brake engages automatically 12 seconds after
the last message of a swing process.
Switch position 1 = Swing bearing brake applied
(LED switch lights up)
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